Freezer



y J.A CONGLETON ET AL 1,861,301

FREEZER Filed Feb. 2, 1931 2 Sheets-Sheet 2 65 SQ Q Q Q a Q. 42 007:Zeiozg 060a? eily,

INVENTOR Patented May 31, 1932 JOHN A. CONGLE'ION AND OSCAR KELLY, OFDALLAS, TEXAS FREEZER Application filed February 2, 1931. Serial No.513,004.

This invention relates to freezers for use in freezing such foodproducts as ice cream, ices, custards and the like, an object being toprovide a freezer for this purpose through which the material to befrozen may be passed, with the freezing action occurring during suchpassage, so that a continuous freezing of the food products will occur.

Another object of the invention is the provision of a device of theabove character which will freeze fruits and other solids mixed withliquids, and will freeze the mixture continuously with the liquids andsolids evenly mixed and without crushing the latter.

Another object of the invention is the provision of a device which inaddition to the above and other advantageous features, is simple andinexpensive in construction, reliable and eflicient in use, and may bereadily taken apart and reassembled for cleaning and repair.

With the above and other objects in view, the invention further includesthe following novel features and details of construction, to behereinafter more fully described, illustrated in the accompanylngdrawings and pointed out in the appended claims.

In the drawings Figure 1 is a sectional view illustrating the invention.

Figures 2, 3 and 4 are sections taken respectively on the lines 2-2, 3-3and 44 of Fi ure 1.

Referring to the drawings in detail wherein like characters of referencedenote corresponding parts, the invention as illustrated comprises ahousing which includes top and bottom plates 10 and 11 respectively andpartition plates 12 and 13, the latter being spaced apart and providingtogether with the plates 10 and 11, and sectional side walls, anintermediate freezing chamber 14, and expansion chambers 15 and 16 uponopposite sides thereof, which may be insulated on the outside.

The side walls are of sectional formation and comprise annular sections17, 18 and 19, the section 17 providing one of the walls of the freezingchamber 14 whose other walls are provided by the partitions 12 and 13,while the sections 18 and 19 form one of the Walls of the expansionchambers 15 and 16 respectively.

The material to be frozen is fed to the freezing chamber through acombined air inletand material feed pipe 20, whose inner endcommunicates with an opening 21 provided in the partition plate 12. Theouter end of this pipe is provided with a valve 22 to control theadmission of air. A branch pipe 23 com- .municates with the pipe 20 andthis pipe 23 50 has a sliding connection with a pipe 24 which may leadfrom a suitable source of material supply. As shown in Figure 4 of thedrawings the pipe 24 and the opening 25 in the outer end of theextension 23 are of angular 5 cross sectional shape, so that relativelongitudinal movement between the pipes 23 and 24 may be permitted, butrelative rotary movement prevented. An operating member 26 is providedfor the operation of the valve 79 Mounted for rotation within thefreezing chamber is an agitator which comprises a hub 27 with aplurality of fingers 28, the latter being spaced from the walls of thecham- 15 her 14 to provide space for the material to be frozen.

The agitator is rotatable with the shaft 29 which operates within asleeve 30 which extends from the plate 11 and this sleeve 30accommodates anti-friction bearings 31 which are spaced apart by meansof asleeve 32. The shaft 28 extends through a packing gland 33 which. iscarried by a cap 34 applied to the sleeve 30. B

Communicating with the chambers 15 and 16 respectively are pipes 35 and36. These pipes are adapted to supply a suitable refrigerant-, such asammonia or any otherre- ,frigerant, to the expansion chambers 15 and 16and this refrigerant is drawn from said chambers through suction lines37 and 88.

The housing may be quickly taken apart and reassembled for the purposeof cleaning and repair, and in order to hold the parts assembled, thewall sections 17, 18 and 19 are seated within annular grooves 30provided in the plates 10, 11, 12 and 13, while the plates 10 and 11extend beyond the annular wall sections and are provided with openingsfor the passage of clamping bolts 40.

The freezing chamber 14: is in communication with a discharge pipe 41for the passage of the frozen product.

These freezers may also be used in gangs or stages, the chamber of onedischarging into the suction of the next, through each successive stage,and the right of coupling into stages is herein reserved.

The invention is susceptible of various changes in its form, proportionsand minor details of construction and the right is herein reserved tomake such changes as properly fall within the scope of the appendedclaims.

Having described the invention what is claimed is 1'. In a freezer, ahousing, partitions within said housing dividing the latter into afreezing chamber and expansion chambers upon opposite sides of thefreezing chamber, means providing for the passage of a refrigerantthrough the expansion chambers, an agitator movable within the freezingchamber, means to supply material to the freezing chamber to' be frozen,and a controllable air' inlet for thefreezing chamber.

2. In a freezer, a housing, partitions within the housing ividing thelatter into a freezing chamber and expansion chambers upon oppositesides of the freezing chamber means providing for the passage of arefrigerant through the expansion chambers, an agitator movable withinthe freezing chamber, and a combined air inlet and material feed pipefor the freezing chamber.

3. In a freezer, a housing, partitions within said housing dividing thelatter into a freezing chamber and expansion chambers upon oppositesides of the freezing chamber a refrigerant supply pipe for eachexpansion chamber, refrigerant outlet pipes for said expansion chamber,an agitator movable within the freezing chamber, means to supplymaterial to the freezing chamber to be frozen, and a controllable airinlet for the freezing chamber.

4. In a freezer, a housing including separate annular wall sections, topand bottom plates, spaced partition plates arranged between the annularwall sections and dividing the housing into a freezing chamber andexpansion chambers upon opposite sides of the freezing chamber, saidplates having annular grooves therein to receive the annular

